महाभारतः mahābhārataḥ - book-1, chapter-114, verse-21

आरिराधयिषुर्देवं त्रिदशानां तमीश्वरम् ।
सूर्येण सह धर्मात्मा पर्यवर्तत भारत ॥२१॥

21. ārirādhayiṣurdevaṁ tridaśānāṁ tamīśvaram ,
sūryeṇa saha dharmātmā paryavartata bhārata.

21. ārirādhayiṣuḥ devam tridaśānām tam īśvaram
sūryeṇa saha dharmātmā paryavartata bhārata

21. O descendant of Bharata, the righteous-souled (dharma-ātman) Pandu, desiring to propitiate that lord of the gods, performed circumambulation along with the Sun (Surya).

Words meanings summery:

• आरिराधयिषुः (ārirādhayiṣuḥ) - desiring to propitiate, wishing to worship

• देवम् (devam) - the god, the deity

• त्रिदशानाम् (tridaśānām) - of the gods (literally, of the thirty)

• तम् (tam) - that specific deity/lord (him, that)

• ईश्वरम् (īśvaram) - the lord, the master, the ruler

• सूर्येण (sūryeṇa) - with the sun, by the sun (Surya)

• सह (saha) - with, together with

• धर्मात्मा (dharmātmā) - Pandu, whose nature is righteousness (the righteous-souled, one whose self (ātman) is (dharma) (natural law/righteousness))

• पर्यवर्तत (paryavartata) - he turned around, he revolved, he performed circumambulation

• भारत (bhārata) - Addressed to Janamejaya (O descendant of Bharata)

Words meanings and morphology

आरिराधयिषुः (ārirādhayiṣuḥ) - desiring to propitiate, wishing to worship

(adjective)

Nominative, masculine, singular of ārirādhayiṣu

ārirādhayiṣu - desiring to propitiate or gain the favor of

Desiderative participle

Desiderative form of the causative of root rādh (to succeed, to propitiate) with prefix ā.

Prefix: ā

Root: rādh (class 5)

Note: Agrees with the implied subject (Pandu).

देवम् (devam) - the god, the deity

(noun)

Accusative, masculine, singular of deva

deva - god, deity, divine being

त्रिदशानाम् (tridaśānām) - of the gods (literally, of the thirty)

(noun)

Genitive, masculine, plural of tridaśa

tridaśa - thirty, gods (referring to the number of principal gods)

Compound type : Bahuvrihi (tri+daśa)

• tri – three
  numeral
• daśa – ten
  numeral

तम् (tam) - that specific deity/lord (him, that)

(pronoun)

Accusative, masculine, singular of tad

tad - that, he, she, it

ईश्वरम् (īśvaram) - the lord, the master, the ruler

(noun)

Accusative, masculine, singular of īśvara

īśvara - lord, master, ruler, controller

सूर्येण (sūryeṇa) - with the sun, by the sun (Surya)

(proper noun)

Instrumental, masculine, singular of sūrya

sūrya - the sun, the sun-god (Surya)

सह (saha) - with, together with

(indeclinable)

धर्मात्मा (dharmātmā) - Pandu, whose nature is righteousness (the righteous-souled, one whose self (ātman) is (dharma) (natural law/righteousness))

(noun)

Nominative, masculine, singular of dharmātman

dharmātman - righteous-souled, virtuous, having a righteous nature (dharma-ātman)

Compound type : Bahuvrihi (dharma+ātman)

• dharma – righteousness, duty, virtue, natural law (dharma)
  noun (masculine)
• ātman – self, soul, spirit, individual (ātman)
  noun (masculine)

Note: Agrees with the implied subject (Pandu).

पर्यवर्तत (paryavartata) - he turned around, he revolved, he performed circumambulation

(verb)

3rd person , singular, middle, past imperfect (laṅ) of pari-ā-vṛt

Prefixes: pari+ā

Root: vṛt (class 1)

भारत (bhārata) - Addressed to Janamejaya (O descendant of Bharata)

(proper noun)

Vocative, masculine, singular of bhārata

bhārata - descendant of Bharata, an Indian, a warrior

Taddhita derivation from Bharata